Running head: CHRONIC OBSTRUCTIVE PULMONARY DISEASE: REDUCING Chronic Obstructive Pulmonary Disease: Reducing Exacerbations Zaina Zawahri Walsh University Advanced Pharmacology NURS 612 1 CHRONIC OBSTRUCTIVE PULMONARY DISEASE: REDUCING 2 Abstract Many patients suffer from respiratory illnesses. These illnesses (asthma, chronic obstructive pulmonary disease [COPD], emphysema, bronchitis) have their highs and their lows, periods of normalcy and periods of exacerbations. Several treatment plans are available during the exacerbation periods but what is available during the periods of normalcy to prevent exacerbations? How can a patient decrease the severity of the exacerbations? This case study focuses on recurrent COPD exacerbations and the ways to avoid them including early detection and intervention, nonpharmacological management, and proper use of medications, with a focus on steroid and antibiotic use. Steroids and antibiotics are often the first medications given during exacerbation periods, however the complications from long-term misuse and over-use often outweigh the benefits. CHRONIC OBSTRUCTIVE PULMONARY DISEASE: REDUCING 3 Chronic Obstructive Pulmonary Disease: Reducing Exacerbations Those who suffer from COPD understand that exacerbations are a part of the disease process. As the disease progresses, the exacerbations become more severe and more frequent. These exacerbations interfere with activities of daily living and overall quality of life. Many patients complain about the frequent hospital visits and complications from long-term antibiotics and steroids used to battle the disease process. Research suggests that, if used in a different way, these medications can be more effective at preventing the frequency and severity of the exacerbations. In addition, nonpharmacological treatment options can improve lung function, muscle strength, and overall quality of life. Chief Complaint, Medical History, & Physical Findings A 55-year-old Caucasian female presents to the emergency department (ED) with difficulty breathing, increased swelling in all four extremities, and chest discomfort. She was discharged from the hospital three weeks prior with a diagnosis of COPD exacerbation. In addition to COPD, she has a history of headaches, weakness, frequent bronchitis, chronic cough, emphysema, pneumonia, shortness of breath with rest and exertion, back pain, osteoporosis, anxiety, depression, panic attacks, heart palpitations, Graves Disease, recurrent urinary tract infections, hyperthyroidism, and home oxygen therapy. She suffers from fractured vertebrae as a result of long-term steroid use and complains of fragile skin. During the initial assessment, the patient is sitting in a tripod position, on three liters ofoxygen via nasal cannula. Her breathing is shallow and slow, as though she were trying to calm herself and not waste energy. After placing the patient on the cardiac monitor, vital signs were obtained and all fell within normal limits. A pulse ox of 94% on the oxygen is slightly low for the patient; however her portable oxygen tank she was low. The head to toe assessment CHRONIC OBSTRUCTIVE PULMONARY DISEASE: REDUCING 4 focused on cardiovascular and respiratory. Her lung sounds revealed inspiratory and expiratory wheezing in the upper lung lobes and diminished breath sounds in the lower lung bases. Her electrocardiogram displayed normal sinus rhythm and pulses were palpable in all extremities. She has trace swelling in all four extremities. Although she denied chest pain, she states, “I feel like there is fluid on my lungs causing this discomfort and pressure.” Her treatment plan for this ED visit include the electrocardiogram, chest x-ray, blood work (including blood cultures, complete blood count, complete metabolic panel, cardiac markers, and the heart failure maker BNP) and IV access. After receiving an initial Duoneb 3ml nebulizer, she was placed on a Proventil Continuous 23mg treatment for one hour. Methylprednisolone sodium succinate (Solu-Medrol) 125mg was given IV push. Her lab tests were normal and her chest x-ray did not show any signs of infection. After the medical interventions, her symptoms persisted. Her fractured back caused her extreme pain and worsened her breathing. She was given Vicodin 5-500mg for back pain and started on Levofloxican 500mg IV piggy back as prophylactic treatment for the exacerbation. The admitting physician came to assess her and she was admitted with a diagnosis of COPD exacerbation. Allergies & Medication Profile Allergies: Morphine and Tape Acetaminophen (Tylenol) 500mg: 2 tabs PO q4h PRN pain Acetaminophen-HYDROcodone (Vicodin) 325-10mg: 1 tab PO q4h PRN pain Albuterol (ProAir HFA MDI) 90mcg/inh: 2puffs Inhalation QID PRN wheezing Albuterol-ipratropium inhalation aerosol solution (Atrovent) 3ml: Inhalation QID ALPRAZolam (Xanax) 0.25mg: 1 tab PO QID PRN anxiety Cyanocobalamin (Vitamin B-12) 100mcg: 1 tab PO Daily Cyanocobalamin (Vitamin B-12) 1000mcg/ml: IM qMonth Diltiazem (Cardizem) 180mg/24hr Capsule: 1 capsule PO BID CHRONIC OBSTRUCTIVE PULMONARY DISEASE: REDUCING 5 Fluticasone-salmeterol (Advair Diskus) 500mcg-50mcg: 1 puff BID Furosemide (Lasix) 40mg: 1 tab PO BID Gabapentin (Neurontin) 300mg: 1 capsule PO TID Methimazole (Tapazole) 5mg: 1 tab PO Daily Multivitamin: 1 tab PO Daily Potassium Chloride (K-Dur) oral extended release tablets 10mEq: 1 tab PO TID Prednisone 20mg: 1 tab PO Daily Teriparatide (Forteo) 600mcg/2.4ml: 20mcg subq Daily Tiotropium (Spiriva) 18mcg Inhalation: 1 capsule inhalation daily Zolpidem (Ambien) 5mg: 2 tablets (total 10mg) PO qHS PRN sleep Pathophysiology of COPD COPD is a complex disorder that often begins with a history of cigarette smoking or exposure to pollutants. The patient in this case study had smoked for over 40 years and quit after her diagnosis. Smoking and other pollutants activate an inflammatory response in the body. The inhaled particles cause destruction and an increase in neutrophils and macrophages. There is also an increase in the release of elastase and protease. This causes damage and breakdown of the alveolar wall, elastic tissue, and collagen. The result is an increase in mucus secretion, impaired airway clearance, and the potential collapse of bronchioles that leads to air trapping (Copstead & Banasik, 2010, p. 551). These physiologic changes explain the symptoms that the patient displays. COPD is often made up of several different respiratory illnesses. Commonly, a patient will suffer from chronic bronchitis and emphysema; both make up the diagnosis of COPD (Morton & Fontaine, 2009, p. 643). These irreversible disease processes often go undiagnosed until patients suffer extreme symptoms. In 2010, COPD was the sixth most common cause of death worldwide and it is projected to become the third by 2020 (Bastin et al., 2010, p. 91). With CHRONIC OBSTRUCTIVE PULMONARY DISEASE: REDUCING 6 the prevalence of the disease increasing, it is expected that more and more patients will suffer from exacerbations. COPD exacerbations caused by a viral or bacterial infection or anything that worsens the inflammatory process. Symptoms of the exacerbation include a worsening of cough, difficulty breathing, and a change in sputum production causing the patient to have a decreased quality of life. These periods may also be a sign that the medication needs changed or adjusted (Wedzicha & Seemungal, 2007, p. 786). It is during this process that steroids and antibiotics are prescribed, bronchodilators are used more frequently, and oxygen therapies are adjusted (Wedzicha & Seemungal, 2007). It is this time that patients suffer great consequences and complications from the misuse and over use of these medications. Medication Profile Analysis Looking at the patient’s medication profile, it would appear that her COPD, complications from the disease process, and medication regimen are worsening. Almost all of the medications can be related back to COPD, the complications from the COPD, and the use of long-term steroids and antibiotics. As a result of these complications the patient is placed on more medication then necessary had her disease been diagnosed earlier. Pain control is important because it relates to all body functions, heart and respiratory rate in particular. When a person suffers pain, their heart rate and respiratory rate will increase, they will use more energy, and become fatigued more easily. As a result of her fractured vertebrae, the patient is on two pain medications Tylenol and Vicodin. Due to the severity of her pain, the patient states she takes the Vicodin several times a day. With the use of this medication, it is imperative that the patient’s respiratory status be monitored, as this medication can suppress the cough reflex, cause respiratory depression, and impair cognitive ability (Wilson, Shannon, Shields, & Stang, 2008, p. 743). In addition, her liver enzymes will need to be monitored, as she CHRONIC OBSTRUCTIVE PULMONARY DISEASE: REDUCING 7 has the potential to develop hepatotoxicity with the use of acetaminophen (Wilson et al., 2008, p. 10). If her pain can be controlled, then her respiratory status can be stabilized. Her vertebrae fractures are the source of her pain, but where did they come from and why will they not heal? Research suggests that there is a relationship between COPD and osteoporosis due to the local and systemic inflammation. There is an increase in serum TNF- α levels that stimulate the differentiation of macrophages into osteoclasts, although the exact relationship is unclear (Fabbri, Luppi, Beghe, & Rabe, 2008, p. 207). To prevent any further bone deterioration, her physicians have placed her on Forteo subcutaneous injections daily. This medication stimulates new bone formation and increases bone mass and strength. It will be important to monitor her serum calcium levels and evaluate her injection techniques (Wilson et al., 2008, p. 1466). Although her physicians are treating the osteoporosis, they are forgetting to address another major cause, long-term steroid use. The patient has been taking prednisone off and on for years. While in the hospital, she often receives IV steroids called Solu-Medrol. As with this visit to the ED, the physicians prescribed her the medication to decrease the inflammation and bronchial spasms (Wilson et al., 2008, p. 980). The problem occurs when this medication and prednisone are given together. Prednisone and other glucocorticoids have been associated with an increased risk of developing osteoporosis. About 30-50% of patients taking this medication will suffer from a fracture and that number significantly increases as the dose and length of administration increases (Mazziotti, Canalis, & Giustina, 2010, p. 878). The patient is on a very high dose of daily prednisone. She states that she has been on this dose since her last hospital admission. Resistance to medications is likely, however more and more research is proving that it is ineffective in delaying the progression of the disease. Therefore, long-term use of steroids should be avoided during periods CHRONIC OBSTRUCTIVE PULMONARY DISEASE: REDUCING 8 of normalcy (Barnes, 2013, p. 638). During exacerbations however, these oral corticosteroids have been proven to decrease inflammation, improve airflow, and decrease length of hospital stay (Schweiger & Zdanowicz, 2010, p. 1061). For this particular patient, the fine balance of steroid use has been upset. She is now forced to take high doses of the medication for much longer then recommended. During her well periods it will be important to wean her off of the steroids as quickly and safely as possible to avoid resistance and adverse effects. Prednisone is a common treatment for many different medical problems. It is best to be given short term, over the course of a few weeks, slowly increasing and decreasing the dose. This particular patient has been on high doses of prednisone for a very long time, which can lead to a decrease in cortisol production by the adrenal glands (Chang-Miller, 2011). Many complications occur when the body fails to produce cortisol and the synthetic version (in this case prednisone) is abruptly stopped. The constant suppression of the adrenal glands and hormone production can lead to damage and insufficiency and abruptly stopping prednisone will cause damage to the rest of the body (Aulakh & Singh, 2008, p. 1070). Not only will the symptoms of the disease process occur more rapidly, the patient can suffer from nausea, vomiting, weakness, fatigue, joint and muscle pain, headache, fever, and lethargy (Katzung, Masters, & Trevor, 2012, p. 707). The best way to prevent these adverse effects is to slowly decrease the synthetic steroid. This will allow the adrenal glands to begin producing hormones again. For this particular patient, research suggests a decrease of prednisone over a three-week period; with dosing adjustments taking place every three to four days by no more then 25% (Aulakh & Singh, 2008, p. 1071). The patient will be monitored closely during this process and will be educated on the signs and symptoms of withdrawal and toxicity. Follow-up evaluation CHRONIC OBSTRUCTIVE PULMONARY DISEASE: REDUCING 9 after the discontinuation of prednisone, including hormone levels and her osteoporosis related pain will also be important. This patient is on several different bronchodilators. Even in severe COPD, patients on several different bronchodilators have shown significant improvement in their lung function (Tashkin et al., 2008, p. 746). There are two categories of bronchodilators, short acting beta agonists (SABA) and long acting beta agonists (LABA). SABA, like albuterol, acts to decrease airway resistance, which improves mucus secretion and improves lung function. Too much of this medication can cause significant tremors and increased heart rate (Wilson et al., 2008, p. 3031). Atrovent, another SABA, is a nebulized form of albuterol that prevents bronchospasms in addition to being a bronchodilator (Wilson et al., 2008, p. 814). These two medications provide the patient with quick relief, but the LABA are what allow the patient to have improved quality of life. The patient is on two LABA, Spiriva and Advair Diskus. Although these medications provide bronchodilation for a long period of time, there are many risk factors and considerations that need addressed prior to administration. Hepatic and renal dysfunction can significantly impair the absorption, distribution, and excretion of the drugs (Allen, Davis, Hardes, Tombs, & Kempsford, 2012, p. 2317). Patients should be instructed to rinse their mouth thoroughly to decrease dryness and prevent mouth sores (Wilson et al., 2008, p. 1508). In addition to being a LABA, Advair Diskus is also an inhaled corticosteroid, which acts directly on the lungs to decrease inflammation. However, this medication has been associated with an increased risk for developing pneumonia if used incorrectly (Singh, Amin, & Loke, 2009). Proper use of these medications will improve quality of life and decrease the frequency of exacerbations. CHRONIC OBSTRUCTIVE PULMONARY DISEASE: REDUCING 10 With any respiratory condition, infections are common. Antibiotics are often prescribed to decrease infection severity and fight the bacteria that have invaded the lungs. However, antibiotics are often prescribed for viral infections and prophylactic treatment. As stated earlier, the patient had no signs of infection but was given a dose of levofloxacin. Antibiotic use for acute exacerbations of COPD are very common, but more and more research is showing that long-term antibiotic use, even during periods of normalcy, may actually decrease the amount and severity of exacerbations a patient has during the course of a year (Wenzel, Fowler, & Edmond, 2012). Azithromycin is the antibiotic researchers recommend for this treatment plan. It is taken for three days every 21 days during the winter months. These patients showed an improved quality of life and reduced exacerbation frequency and severity (Babu, Kastelik, & Morjaria, 2013, p. 802 & 806). When taking antibiotic for long periods and for no reason, one often wonders about resistance and adverse effects. Careful monitoring will need to take place to prevent ototoxicity, cardiac toxicity, and drug-drug interactions. Liver enzymes will also need to be checked, especially in patients with moderate liver disease. This treatment plan will need to be evaluated frequently, weighing both the pros and cons (Wenzel et al., 2012, p. 343). If this patient had been started on a long-term antibiotic therapy at the time of her last exacerbation, this exacerbation might have been prevented. COPD not only affects the lungs, the heart, and the bones; it also impacts the patient’s mental health. Many patients who have COPD also have anxiety and depression, with these disorders increasing as the severity of the disease increases (Clini & Ambrosino, 2008, p. 223). The patient is taking Xanax up to four times a day and Ambien for sleep as needed. She states that during her periods of exacerbation, she takes both more often than during her periods of normalcy. The inability to breathe normally would cause someone to have anxiety and the CHRONIC OBSTRUCTIVE PULMONARY DISEASE: REDUCING 11 inability to lay flat would cause an inability to sleep. The combination would lead to decreased energy available to breathe, leading to an increased work of breathing, and the cycle would continue. As suggested above, the adjustments to her medications will provide her with an improved quality of life and less frequent exacerbations. This will allow her to live a fuller, more enjoyable life without suffering the side effects of the medications. The side effects could have been avoided, however, if her primary care providers and pulmonologist had utilized nonpharmacological options and prevention methods sooner in her treatment plan. Clinical Management Plan: Exacerbation Prevention COPD exacerbations are inevitable; they are a part of the disease process. The question still remains: How can these exacerbations be less frequent and less severe? There are both pharmacological and nonpharmacological ways in which patients can take control of the disease process and have more periods of normalcy. The frequency of this patient’s COPD exacerbations is concerning. Although she was very strict in her medication routine, she still developed another exacerbation. Some alternative or additions to her therapy would be a long-term antibiotic as mentioned previously, adjustments to her home oxygen therapy, nutritional consultations, and pulmonary rehabilitation. Most importantly, patient education and self-management of the disease process need to be addressed. The patient is on three liters oxygen via nasal cannula constantly. She does not make adjustments to her oxygen flow based on activity level and her portable oxygen tanks are small, not providing enough oxygen when she is using the most energy. Proper oxygen therapy use helps to reduce mortality, anxiety, and depression in many patients (Wedzicha & Seemungal, 2007, p. 793). However, when oxygen therapy is used inappropriately it will cause the opposite. CHRONIC OBSTRUCTIVE PULMONARY DISEASE: REDUCING 12 It also important to include in her prescription for adjusted flow rates at rest and at activity (Clini & Ambrosino, 2008, p. 220). For this patient, her oxygen therapy needs to be reevaluated, possibly new equipment, and a new prescription with adjusted flow rates. This would significantly improve her quality of life, anxiety, and provide her with more freedom to do the things that she loves. Nutrition plays a large role in health and illness. In patients with COPD, like this one, more energy is required for the simple task of breathing. The patient weighs 57.5 kilograms (126 pounds) and she is approximately 162 centimeters (5feet 3 inches) tall. In COPD, patients suffer from muscle wasting and depletion due to lack of intake; the work of eating is worse then the work of breathing (Clini & Ambrosino, 2008, p. 222). This patient is already on a multivitamin and Vitamin B-12 to help replace what she is unable to consume. A dietitian should be consulted to instruct the patient on eating smaller, more frequent meals that are high in protein. This will prevent the full feeling after eating a large meal, which can sometimes cause difficulty breathing, in addition to allowing for her muscles to rebuild slowly (Clini & Ambrosino, 2008, p. 222). Once her nutritional status has been evaluated and her oxygen therapy established, she can move on to pulmonary rehabilitation Pulmonary rehabilitation is an exercise program for the lungs. It can be done during periods of normalcy as well as immediately following an exacerbation. The goals of this therapy are to prevent exacerbations, decrease the severity of exacerbations, restore lung function, and provide the patient with skills needed to complete activities of daily living (Decramer et al., 2008, p. S7). This therapy, combined with the improved nutritional status, and adjusted medications will allow the person to live a more active lifestyle, free from exacerbations. CHRONIC OBSTRUCTIVE PULMONARY DISEASE: REDUCING 13 These nonpharmacological interventions are designed to give the patient more control over the disease process. With these changes, educations needs to take place to make patient’s more aware of slight changes in their breathing, sputum production, or exercise tolerance that could be early signs of an exacerbation. The earlier an exacerbation is detected, the earlier treatment can begin, and the less damage will be done to already fragile lung tissue. Early smoking cessation prior to diagnosis or early in the disease process will improve long-term lung function and decrease the frequency of exacerbations. Also, immunizations against influenza and pneumonia have also shown to decrease the rates of exacerbations (Decramer et al., 2008, p. S6). This patient had utilized all of these pharmacologic and nonpharmacologic methods of exacerbation prevention; she would have an improved quality of life, and decreased severity of illness. Conclusion COPD affects millions of people around the world. 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